Telescoping staging

ABSTRACT

This invention relates to a telescoping staging which may be operatively raised and lowered to desired height levels. There is also provided a canopy member supported by the movable portion of this staging which offers environmental protection for workmen using this staging device.

United States Patent Inventor Leo R. Proulx 66 Cypress St., Manchester,N.H. 03103 Appl. No. 830,305

Filed June 4, 1969 Patented Mar. 2, 1971 TELESCOPIN G STAGING 2 Claims,9 Drawing Figs.

U.S. Cl.....'. 182/129, 182/141, 182/179 Int. Cl E04g1/18,

E04g l/26 Field ofSearch 182/141,

[56] References Cited UNITED STATES PATENTS 800,806 10/1905 King 182/1412,796,299 0/1957 Freeman 182/141 3,017,968 l/l962 McMahon 182/141FOREIGN PATENTS 589,443 6/1947 Gr'eatBritain 182/132 Primary ExaminerReinaldo P. Machado Att0rneyFrederick D. Goode ABSTRACT: This inventionrelates to a telescoping staging which may be operatively raised andlowered to desired height levels. There is also provided a canopy membersupported by the movable portion of this staging which offersenvironmental protection for workmen using this staging device.

V PATENTEUMAR 2m! 3566,9531

" SHEET 1 BF 3 1.50 E. PEOUL X PATENTED MAR 2197:

PATENTEDHAR 2197i 3565991 swinger 3 E EM /e.

LEO R- PIPOULX 'rrrnscormo STAGING This invention relates toimprovements in a telescoping staging and more particularly to animproved form of telescoping staging-which offers weather protection tomasons or others engaged in the erection and construction of one or twostory masonry building walls.

The construction of masonry type building walls has often depended onweather conditions, and more particularly on whether the temperature wasabove freezing, and whether the presence of or likelihood of rain wasimminent. These weather variables in turn have significant effect on thecontractors time schedule for building erection, both in terms of timeand cost. I i a Another, perhaps more important contractionconsideration of the time and cost relation is the cost of employingmasons themselves. This particular labor cost has now reached such ahigh figure, that every consideration must be given to permitting thesemasons to devote their entire effort to actually laying bricks, blocksand the like, and, conversely, to devote as little of their time aspossible to the peripheral aspects of their trade, 'i.e,., carryingbrick, mixing mortar, or the like. If such high-cost labor is to be usedmost effectively, each mason should be conveniently locatedwith respecttothe particular course of brick which he is laying, andsimilarly. the

materials with which he works should also be conveniently located withrespect to availability and emplacement into, the wall beingconstructed.

With the foregoing criteria in mind, I have developed an adjustablestaging which may be employed in single units on one side of a wall, or,as shown in the illustrated embodiment, as cooperating multiple units inopposed relation on each side of the wall being constructed. Each of thestaging units is ar-. ranged so as to provide means for supporting amasonor other workman on one level, while also providing means forcarry,- ing the raw materials with which he works on another level,preferably about waist high. Itis further provided that the entirestaging unit is vertically adjustable in desired increments in orderthat the mason may always maintain his position with respect. to thewall he is building in the most convenient relation.

It is, accordingly, among the objects of this invention to provide abilevel adjustable staging device for masons characterized byexceptional rigidity.

It is a further object of this invention to provide means by which thatportion of the wall being erected adjacent to the staging unit may beprotected from weather environments by an enveloping canopy means.

It is a still further object of this invention to provide an adjustablestaging which provides automatic locking features as it becomes extendedin height.

With these, and other objects in view as will hereinafter more fullyappear and which will be more particularly pointed out in the appendedclaims, general reference is now had, to the following description takenin conjunction with the accompanying drawings in which: I

FIG. 1 illustrates a side elevation view of a typical staging unit withthe depressed or collapsed condition shown in dotted line;

FIG. 2 illustrates in enlarged view. a typical supporting leg member inpartial cutaway view showing with particularity the elevatingpinsen'gaged with the platform structure;

FIG. 3 illustrates a cross-sectional view taken on line 3-3 of FIG. 2;

FIG. 4 illustrates a cross-sectional view taken on line 4-4 of FIG. 2;

FIG. 5 illustrates across-sectional view taken on line 5-5 of FIG. I;

FIG. 6 illustrates a cross-sectional view taken on line 6-6 of FIG. 9illustrates a cross-sectional view of a typical canopy clamp taken online 9-9 of FIG. 8.

Referring now with greater particularity'to the drawings, there is shownin. FIG. I a side elevation view of a typical staging unit 10 generallycomprised of a plurality of vertically disposed rigid leg members 11fabricated of conventional hollow square tube portions interconnected onthe ends by brace members 12 so as to form a rigid base support 13.Brace elements 14 are employedas strengthening members on the sides togive added rigidity to the base support.

Carried within hollow leg members 11 is a movable framework 15 comprisedof leg members 16 adapted to slide interiorly of corresponding legmembers 11 and interconnected, by suitable bracing members 117. Aplatform 18 comprised of planks or other suitable material is supportedby the top of bracing members 17 and is used to carry the masonrysupplies. such as bricks, mortar, or other materials.

Fixed to leg members 16 at the front of framework 15 and outboardtherefrom are angle braces 19. A platform 20 comprised of planks orother material is conventionally supported by angle braces 19 for amason or otherworkman to stand on. Platform 18 is designed to be locatedabout waist high to a person standing on platform 20. A lift mechanism21 is attached to each leg 11 for coacting relation with correspondingleg members 16 for raising and lowering movable framework 15.

Referring now with, greater particularity to FIGS. 2, 3 and 4, there areshown the details of a typical leg member 11 and its correspondingmovable leg member 16 carried therein. Looking first at FIG. 3, legmember 16 is located within leg 11 so as to be substantially tangentthereto on two sides. Angle braces 19 are rigidly fastened to leg 16 bywelding or other suitable meanswith appropriate relief slots beingprovided. therefor in leg 11 as shown in FIG. 2. Also secured to legl6by welding is aconventionalratchet bar 22 so oriented as to urge leg16 into the tangential relation hereinbefore mentioned. Leg 11 issuitably ported or recessed whereby a conventional jacking mechanism 21issecurely fixed thereto so as to cooperatively engage with ratchet 22.,Thus it can be seen that as adjacent end pairs of jack mechanisms areactuated, each coacts in a conventional manner with its correspondingratchet 22 which in turn is securely fixed to leg 16, and thus moves itand the append movable framework 15 upwardly. A suitable leveling disc24 of conventional design is provided at the base of each leg forinitial leveling ofthe staging unit prior to using.

Referring now to FIG. 5 which illustrates a side elevation view takenonline 5-5 of FIG l,'there is shown a typical crossbracing arrangement foreach staging unit. Brace members 25 are removably attached to adjacentleg members 11 to impart necessary rigidity to the base support 13. Eachbrace member 26 is pivotally mounted at its upper end by a conventionalwing nut and stud or other fastening means 27. The lower end of eachbrace 26 has a plurality of serrations 28 adapted to engage with crossmembers 12 of base support 13. Thus, as movable framework 15 is liftedvertically, brace members 26 will also be raised and engageable withcrosspiece 12, thus automatically bracing framework 15 against swayingmovement.

Referring further to FIGS. 1 and 8, the movable frame portion 15 carriesa series of upstanding generally arcuately shaped canopy support members29 which may, in the caseof multiple opposed staging units be connectedin the nature of rafters, and which can support in attached fashion aplastic canopy 30. These canopy support members are preferably made ofthin walled tubing of approximately 1 /4 inches more or less.

The plastic canopy itself may be held in place by any number of methods,however, the illustration in FIG. 9 shows one embodiment which has beenfound useful.

I claim:

1. A telescoping staging comprising in combination:

a. A pair of rigid, generally rectangular shaped base support means;

b. a correspondingly shaped framework slidably' carried by each'of, saidbase support means;

0. means mounted on said support means and operatively coacting with theframework whereby to raise and lower said framework;

d. a canopy supported above said framework in spaced relation thereto;

e. means carried by said framework for supporting said canopy; each saidrigid base support means comprising f. a plurality of verticallydisposed hollow tube portions;

g. bracing members interconnecting that pair of opposed tube portionsdetermining each end of said base support means;

h. means for leveling said base support means which are integrally andcoextensively connected to the bottom end of each tube portion;

i. a plurality of crossbracing members each pivotally fastened at oneend thereof to respective upper corner portions at the front and rear ofsaid framework;

j. the other end of each said crossbracing member being freely supportedby the aforesaid bracing member diagonally located from the pivotalconnection to said framework; and

k. said other end of each crossbracing member carrying a series ofserrations longitudinally along one edge thereof, adapted tointerlockingly engage with its supporting bracing member as theframework is raised.

2. The structure of claim 1 wherein said correspondingly shapedframework comprises:

a. a first platform member;

b. a plurality of rigid leg members depending from said platform andcarried within corresponding ones of said hollow tube portions;

c. angle braces attached outboard of the rigid leg members at the frontof said framework;

d. a second platform member carried by said angle braces;

and

e. said first platform being located about waist high with respect to aperson standing on said second platform.

1. A telescoping staging comprising in combination: a. A pair of rigid,generally rectangular shaped base support means; b. a correspondinglyshaped framework slidably carried by each of said base support means; c.means mounted on said support means and operatively coacting with theframework whereby to raise and lower said framework; d. a canopysupported above said framework in spaced relation thereto; e. meanscarried by said framework for supporting said canopy; each said rigidbase support means comprising f. a plurality of vertically disposedhollow tube portions; g. bracing members interconnecting that pair ofopposed tube portions determining each end of said base support means;h. means for leveling said base support means which are integrally andcoextensively connected to the bottom end of each tube portion; i. aplurality of crossbracing members each pivotally fastened at one endthereof to respective upper corner portions at the front and rear ofsaid framework; j. the other end of each said crossbracing member beingfreely supported by the aforesaid bracing member diagonally located fromthe pivotal connection to said framework; and k. said other end of eachcrossbracing member carrying a series of serrations longitudinally alongone edge thereof, adapted to interlockingly engage with its supportingbracing member as the framework is raised.
 2. The structure of claim 1wherein said correspondingly shaped framework comprises: a. a firstplatform member; b. a plurality of rigid leg members depending from saidplatform and carried within corresponding ones of said hollow tubeportions; c. angle braces attached outboard of the rigid leg members atthe front of said framework; d. a second platform member carried by saidangle braces; and e. said first platform being located about waist highwith respect to a person standing on said second platform.